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38 lines
1.0 KiB
C
38 lines
1.0 KiB
C
/*
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* Copyright (C) 2014 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @addtogroup driver_periph
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* @{
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*
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* @file cpuid.c
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* @brief Low-level CPUID driver implementation
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*
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* @author Troels Hoffmeyer <troels.d.hoffmeyer@gmail.com>
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*/
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#include <string.h>
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#include "cpu-conf.h"
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#include "periph/cpuid.h"
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#define SAMD21_CPUID_WORD0 (*(volatile uint32_t *)0x0080A00C)
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#define SAMD21_CPUID_WORD1 (*(volatile uint32_t *)0x0080A040)
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#define SAMD21_CPUID_WORD2 (*(volatile uint32_t *)0x0080A044)
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#define SAMD21_CPUID_WORD3 (*(volatile uint32_t *)0x0080A048)
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void cpuid_get(void *id)
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{
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uint32_t source_address[] = { SAMD21_CPUID_WORD0,
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SAMD21_CPUID_WORD1,
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SAMD21_CPUID_WORD2,
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SAMD21_CPUID_WORD3};
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memcpy(id, (void*) source_address, CPUID_ID_LEN);
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}
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